gmake check failures on FreeBSD

Two unexpected failures are occurring:

FAIL: /usr/home/jeffc/llvm/obj/../test/Regression/CodeGen/X86/shift-double.llx:

FAIL: /usr/home/jeffc/llvm/obj/../test/Regression/Transforms/InstCombine/2004-11-27-SetCCForCastLargerAndConstant.ll:

        %Y = cast sbyte %SB to uint ; <uint> [#uses=1]
        %Y = cast sbyte %SB to int ; <int> [#uses=1]
        %Y = cast sbyte %SB to uint ; <uint> [#uses=1]
        %Y = cast sbyte %SB to int ; <int> [#uses=1]

Yup, these are "expected". I'll XFAIL them for now.

Thanks,

-Chris